SAS configuration details
Apply these Storwize® V3500 configuration details for serial-attached SCSI (SAS) host connections.
SAS connections require a direct attachment from the host to a Storwize V3500 system. The host and the system cannot be attached via a SAS switch.
To ensure continuity during failover scenarios, directly attach each host to both system canisters. Use a multipathing device driver on the host to provide a redundant connection to mapped volumes.
Subsystem Device Driver Device Specific Module (SDDDSM) is required for SAS Microsoft Windows hosts. For information about SDDDSM, search for Support Matrix for Subsystem Device Driver at the following site:
www.ibm.com/support/portal/overview
The Multipath Subsystem Device Driver user's guides are at this site:
SAS port speed and mapping
The SAS host ports on node canisters can operate at 6 Gbps.
Using the management GUI to configure SAS host attachment
To configure SAS host attachment by using the management GUI, first select and then select SAS for the host connection.